docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1940,6 +1940,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://growthepie.xyz"><img src="https://avatars.githubusercontent.com/u/32496674?v=4?s=100" width="100px;" alt="Matthias Seidl"/><br /><sub><b>Matthias Seidl</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/commits?author=mseidlx" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/JoeChenJ"><img src="https://avatars.githubusercontent.com/u/171761102?v=4?s=100" width="100px;" alt="JoeChenJ"/><br /><sub><b>JoeChenJ</b></sub></a><br /><a href="#content-JoeChenJ" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/itzVarsha"><img src="https://avatars.githubusercontent.com/u/138134029?v=4?s=100" width="100px;" alt="Varshitha"/><br /><sub><b>Varshitha</b></sub></a><br /><a href="#maintenance-itzVarsha" title="Maintenance">🚧</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://alexandriaroberts.dev/"><img src="https://avatars.githubusercontent.com/u/31341867?v=4?s=100" width="100px;" alt="Alexandria Roberts"/><br /><sub><b>Alexandria Roberts</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/commits?author=alexandriaroberts" title="Code">💻</a></td>
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